/*!	 valuelink.h
**	 ValueBase Link Header
**
**	Copyright (c) 2004 Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifndef __SYNFIG_VALUELINK_H
#define __SYNFIG_VALUELINK_H

#include <synfig/valuenode.h>

namespace studio
{

/* NOTE: DO NOT USE THE INDEX BASED INTERFACE... THINGS WILL CHANGE
*/
class ValueBaseLink : public synfig::LinkableValueNode
{
    typedef std::vector<ValueNode::Handle> list_type;
    list_type	list;

protected:
    // stuff I don't want
    virtual bool set_link_vfunc(int /*i*/, synfig::ValueNode::Handle /*x*/)
    {
        return false;
    }
    virtual LinkableValueNode* create_new()const
    {
        return 0;
    }

    // new stuff I need
    list_type::const_iterator findlink(synfig::ValueNode::Handle x) const;
    list_type::iterator findlink(synfig::ValueNode::Handle x);

public: // linkable interface

    // stuff I do want
    virtual synfig::ValueNode::LooseHandle get_link_vfunc(int i)const;
    virtual int link_count()const;

    // I have to support the thing because it's too much work otherwise
    virtual synfig::String link_local_name(int i)const;
    virtual synfig::String link_name(int i)const;

public:
    ValueBaseLink();
    virtual ~ValueBaseLink();

    // don't want
    virtual int get_link_index_from_name(const synfig::String &name)const;

    // new add and subtract stuff
    virtual void add(synfig::ValueNode::Handle v);
    virtual void remove(synfig::ValueNode::Handle v);

};

}; // END of namespace studio

#endif